Dispenser for pressure-sensitive tape having a severing blade arranged to be moved away from its operative position



Dec. 6, 1-955 A. PMKRUEGER 2,725,938

DISPENSER FOR PRESSURE-SENSITIVE TAPE HAVING A SEVERING BLADE ARRANGEDTO BE MOVED AWAY FROM ITS OPERATIVE POSITION Original Filed Sept. 26,1951 2 Sheets-Sheet 2 INVENTOR ATTORNEYS United States Patent nice2,725,938 Patented Dec. 6, 1 955 2,725,938 DISPENSER FORPRESSURE-SENSITIVE TAPE HAVING" A SEVERING BLADE ARRANGED To BE MOVEDAWAY FROM rrs OPERATIVE rosrrroN Alfred: P.'Kr'ueger, Stratford, Conn.,assignor to Derby Sealers, Incorporated, Derby, Conm, a corporation ofConnecticut application- September 26, 1-?51, Serial No.

248,395, new Patent N 2,647,746, dated August 4, 1953. Divided and thisapplication June 23, 1953, Serial No. 363,442

Z'Claims. (Cl. 164-845) This invention relates to tape-dispensingmachines and more particularly to a machine for dispensing pressuresensitive: tape or tape which istacky upon one side, and

the present application is adivision of my prior application forDispenser for Pressure-Sensitive Tape, Serial No. 248,395,. file'd'September 26, 1951, now Patent No. 2,647,746;

The present invention relates to a tape-dispensing machine by which thetape is fed from the machine by means of a lever or other manuallyoperated device. This lever 2 which the dispensed tape may be drawnagainst the severing blade by a user. I

A still furtherv object of the invention is to provide a tape-dispensingmechanism having severing means ofth'e character described wherein thesupport for the severing member is pivoted to the frame of the machine,and spring means are arranged to yieldably hold the severing memspacedelements such as pins extending transversely of the tape and connectedto a rotatable support in the form of a disk-like member, the tacky sideof the tape clinging to the pins so that when this member is rotated,the feedingoperation will be effected. The severing member extendstransversely across the path: of the tape as it is stripped from thefeeding member and the tape issues between the feeding member and thesevering blade. it is desirable to mount the severing blade inrelatively close proximityt'o the tape being fed in order that measuredlengths may be accurately dispensed, it is desirable that the severingblade be arranged to be moved away from its operative position so thatwhen a new roll of tape is inserted in the machine the end of the tapemay be placed upon the feeding roll in position to be fed without thenecessity of its having to be threaded between the feeding member andthe severing blade.

One object of the present invention is to provide a new and improvedmechanism for dispensing pressure-sensitive tape.

A still further object of the invention is to provide a new and improvedmeans for feeding pressure-sensitive tape consisting of a frame orsupport upon which may be carried a supply roll of tape, a feedingdevice, and a severing member, the arrangement being such that the hereither in its operative tape-severing position or man inoperativeposition permitting access to the feeding memher to' place the tapethereon. I 7 To these and other ends the invention consists'i'n thenovel features and combinations of parts tobe hereinafter described andclaimed.

In the accompanying drawings: Fig. 1 is a side elevational View of atape-dispensing mechanism embodying my invention; Fig. 2 is a frontelevational view thereof; 7 Fig. 3 is a partial sectional view on line3-3 of Fig. 2; and

Fig. 4 is an elevational view of the front part of the machine on theside opposite that shown in Fig. 1'.

To illustrate a preferred embodiment of my invention, 1? have shown inthe drawings a tape-dispensing mechanism" comprising a frame having abase 10 and spaced upstanding members 11 and 12, these members beingsecured to the base in any suitable manner, such as by angle brackets13. Adjacent their rear ends the members'll and 12 may be provided withsupporting lugs 1 4 and 15, which lugs are provided with grooves 16 toreceive and hold the spindles 17' of the spool of the supply roll oftape 18'. v .y i

Adjacent the forward end of the frame a shaft 1 9 is rotatably mountedin the plates 11 and 12, and upon this shaft is mounted the actuatingcrank or lever 20. This shaft 19 is provided with a one-way drivingconnection with'the'feeding means which comprises a disk 21 providedwith a plurality of spaced transversely extending pins 22 projectingfrom the disk and secured thereto. The connection between 'the shaft 19and the disk 21 may be that described and illustrated in my parentapplication above referred to;

severing member may be moved away from the feeding J The tape shownat 23exten'ds'from the-supply roll 18, and the tacky surface thereof engagesfthe' surface of the spaced pins 22 so that when the disk is rotated thetape will bedrawn from the su ply roll. The lever "201's normallyurgedina counterclockwise direction by a spring 24 secured at one end toa pin 25 set in the frame member 12 and secured at its other end to apin 26 secured to the lever.

In order to strip the tape from the feed elements 22, a stripper isprovided which, as illustrated, is in the form of a paddle wheel 28(Fig. 3). This wheel is rotatably mounted upon a shaft 29 secured in theside frame 12 and comprises a hub 30 from which project a plurality ofstripping elements in the form of blades 31. This member is so disposedwith relation to the disk 21 and the pins 22 that the blades extendoutwardly between the pins so that they engage the tacky side of thetape and strip it from the pins. Also the pins 22 will engage successiveones of the paddles or blades 31 so that the stripping element will berotated by the rotation of the feed disk 21 and no gears or otherdriving means are required for driving the stripper.

As described in my prior application above referred to, it iscontemplated that the dispenser will be so arranged that it willdispense a measured length of tape upon operation of the handle or lever20. In order that the dispensed length of tape may be severed, a knifeor severing member is provided as shown at 33. secured to the bightportion 34 of a U-shaped support or frame, this frame having legs 35 and36 which extend downwardly, as shown in Figs. 1 and 3, from the bightportion of the frame and are pivoted to the frame members 11 and 12, asshown at 37 and 38. The pivots are, of course, coaxial so that thesupporting member together with the severing knife 33 carried therebymay be swung from its full-line position, shown in Figs. 3 and 4, to thedotted-line position shown in those figures. A spring 39 secured to apin 40 on the frame member 11 and to a lug 41 on the leg 36 serves tohold the U-shaped knifesupporting member in either of its two positionsof adjustment, and it will be noted, referring to Fig. 4, that thespring 39 is disposed upon one side of the pivot 37 when the support isin its full-line position and disposed on the other side of this pivotwhen the support is in its dotted-line or inoperative position. Thus thespring passes by the dead center point when the support is moved fromone position to the other. A tab 42 may be secured to the bight portion34 of the U-shaped knife-supporting frame so that this tab may begrasped by the operator and the frame conveniently swung from oneposition to the other.

Normally the knife support will stand in the position shown in fulllines in the drawing, and in this position the knife 33 is in closeproximity to the tape 23 as it is stripped from the feed elements 22 bythe stripper 28. Thus a measured length of tape may be accuratelysevered. When, however, it is desired to load the machine or placetherein a fresh supply of tape, the knife frame may be swung from thefull-line position shown in Figs. 3 and 4 to the dotted-line positionshown in those figures so that free access is provided to the pins 22 ofthe feed element in order that the new length of tape may be laid uponand caused to adhere to these pins. So soon as the tape is placed inposition the support of the severing member is moved back to itsfull-line position in which it is in close juxtaposition to the feedelements 22.

The operative position of the knife support is determined by engagementof the severing member 33 with the forward edges of the frame membersand 11, while the inoperative position of the support of the severingmember is determined by the engagement of the tab 42 with the base plate10.

While I have shown and described a preferred embodiment of my invention,it will be understood that it is not to be limited to all of the detailsshown, but is capable of modification and variation within the spirit ofthe invention and within the scope of the claims.

What I claim is:

1. In a mechanism for dispensing pressure-sensitive tape, a frame havinga base and spaced side walls rising from the base, a feed memberrotatably supported by the frame between said walls to deliver tapebetween the front edges thereof, a severing member, a support for saidmember, said support being of U-shaped form and comprising a pair ofspaced leg members and a bight portion joining the leg members at oneend thereof, said severing member being secured to said bight portionand abutting the front edges of the walls of the frame when saidsevering member is in operative position, each of said leg members beingpivoted to one of said side walls whereby the support may swing about ahorizontal axis to move the severing member from an upper operativeposition adjacent the feed member to a lower inoperative position topermit access to the feed member, and means urging said severing memberagainst the edges of the walls of the frame.

2. In a mechanism for dispensing pressure-sensitive tape, a frame havinga base and spaced side walls rising from the base, a feed memberrotatably supported by the frame between said walls to deliver tapebetween the front edges thereof, a severing member, a support for saidmember, said support being of U-shaped form and comprising a pair ofspaced leg members and a bight portion joining the leg members at oneend thereof, said severing member being secured to said bight portionand abutting the front edges of the walls of the frame when saidsevering member is in operative position, each of said leg members beingpivoted to one of said side walls whereby the support may swing about ahorizontal axis to move the severing member from an upper operativeposition adjacent the feed member to a lower inoperative position topermit access to the feed member, a spring secured at one end to one ofsaid leg members and at the other end to the frame in such position thatsaid spring passes a dead-center position in the movement of the supportfrom an operative to an inoperative position, and means on said U-shapedsupport engaging the base to limit movement of the support to aninoperative position.

References Cited in the file of this patent UNITED STATES PATENTS650,456 Duncan May 29, 1900 690,465 Schirmer Ian. 7, 1902 2,241,357Paschke May 6, 1941 2,258,912 Steen et al. Oct. 14,. 1941 2,507,446Krueger May 9, 1950 2,510,306 Bachelder June 6, 1950

